Display screen with transitional graphical user interface for a touchscreen device



FIG. 1 is a front view of a display screen with transitional graphical user interface for a touchscreen device showing a first image in a sequence;

FIG. 2 is a second image thereof;

FIG. 3 is a third image thereof; and,

FIG. 4 is a fourth image thereof.

The appearance of the transitional graphical user interface sequentially transitions between the images shown in FIGS. 1-4. The process or period in which one image transitions to another image forms no part of the claimed design.

The outermost broken lines illustrate the touchscreen device. The remaining broken lines illustrate portions of the graphical user interface. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a display screen with transitional graphical user interface for a touchscreen device, as shown and described. 